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- Eriosoma ulmin. 山榆绵蚜
- Holmes crossed two compatible races of ceratocystis ulmi, the causal agent of Dutch elm disease. 霍姆斯曾把荷兰榆病害的致病因子,长喙壳的两个亲和小种杂交。
- Eriosoma lanigerum(Woolly apple aphid) is a kind of harmful pest to agricultural plant quarantined.It lives in the apple tree autoeciously and does harm collectively. 苹果绵蚜是一种农业植物检疫性有害生物,寄主作物主要是苹果树。
- Byctiscus ulmi is one of the main insect pests in Weeping Elm of Xining region. The insect pest is happened a generation in a year in Xining region. 14.8 ovums were borthed by a female pest. 榆叶象甲是西宁地区垂榆上的主要害虫之一;该虫在西宁地区每年发生一代;每头雌虫平均产卵量为14.;8粒;产卵部位集中于叶背;卵期8d左右;幼虫历期25d左右;老熟后在叶柄基部作茧化蛹;蛹期16d左右;从9月下旬起成虫在枯枝落叶层内进入越冬状态。
- panonychus ulmi non-occluded virus 榆全瓜蟥(欧洲红蜘蛛)非封闭型病毒
- Woolly apple aphid (Eriosoma langerum) 苹果绵蚜
- Eriosoma lanuginosum dilanuginosumn. 榆绵蚜
- Investigation on the overwinter of Eriosoma lanigerum 苹果绵蚜越冬调查研究
- Occurrence characteristics of Eriosoma lanigerum and its control methods 苹果绵蚜发生危害特点及防治对策
- Study on Apple Yield Loss and its Economic Threshold of Eriosoma lanigerum 苹果绵蚜为害苹果的产量损失及经济阈值研究
- The spatial distribution pattern of Eriosoma lanigerum on apple tree 苹果绵蚜在苹果树上空间分布型的研究
- Study on Density-Dependent Effects of the Experimental Population of Panonychus ulmi 苹果全爪螨实验种群的密度效应研究
- Life table of Panonychus ulmi experimental population under different temperatures 苹果全爪螨在不同温度下的实验种群生命表
- The regularity of outbreak of Eriosoma lanigeram and its integrated control technique 苹果绵蚜发生规律及综合治理技术
- The Experiment on Harm Characteristics and the Control of Eriosoma lanigerum in Yimen District 易门地区苹果棉蚜的危害特性及其防治试验
- Field Trial Report of 40%Chlorpyrifos EC for Control Eriosoma lanigerum Hausmann 40%25毒死蜱乳油防治苹果绵蚜田间药效试验
- EFFECT OF MEAN DENSITY AND AGGREGATION OF THE WOOLLY APPLE APHID (ERIOSOMA LANIGERUM HAUSM.) ON PARASITISM PERCENTAGE OF APHE LINUS MALI HALDEMAN 苹果绵蚜密度及聚集度对日光蜂寄生作用的影响
- elm flea beetle (Altica ulmi) 榆跳甲
- P. ulmi 苹果全爪螨
- Xysticus ulmin. 乌氏花蟹蛛
